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List of fossils in Iwate prefecture

A list of fossils reported from Iwate prefecture, Tohoku region, Honshu island, Japan.

Photographs of outcrops and fossils in Iwate prefecture

Silurian (443.4-419.2 Ma)
Trilobites
Encrinurus sp.
Brachiopoda
Raphinesquina sp.
Corals
Cyathophylum sp.
Favosites sp.
Favosites sp. cf. F. baculoides
Halysites sp.
Heliolites sp.
Heliolites bohemicus
Stromatoporoids
Devonian (419.2-358.9 Ma)
Trilobites
Reedops nonakai
Brachiopoda
Nodella pexa => Malloproductus pexus
Spirifer verneuili => Cyrtospirifer verneuili
Syringothyris sakamotoi
Lycopods
Cyclostigma sp. => Jurinodendron sp.
Leptophloeum rhombicum
Carboniferous (358.9-298.9 Ma)
Trilobites
Linguaphillipsia subconica
Phillipsia ohmoriensis
Gastropoda
Straparollus (Euomphalus) asanoi => Euomphalus asanoi
Brachopoda
Corals
Actinocyathus japonicus
Koninckophyllum sp.
Kueichouphyllum sp.
Kueichouphyllum yabei
Siphonodendron sp.
Siphonodendron martini
Green algae
Chaetetes nagaiwaensis
Calcareous algae
Permian (298.9-252.17 Ma)
Ammonoids
Paraceratites? sp.
Ferns or Conifers
Taeniopteris setamaiensis
Crinoids
Brachiopoda
Leptodus sp.
Fusulinids
Lepidolina multiseptata => Yabeina multiseptata
Parafusulina matsubaishi => Monodiexodina matsubaishi
Calcareous algae
Triassic (252.17-201.3 Ma)
Ammonoids
Monophyllites wengensis
Bivalvia
Daonella sp.
Calcareous algae
Triassic-Jurassic
Conodonts
Gondolella cf. polygnathiformis
Radiolarians
Archaeospongoprunum cf. imlayi
Hsuum sp.
Pantanellium sp.
Parvicingula sp.
Saitoum sp.
Cretaceous (145.0-66.0 Ma)
Dinosaurs
suborder Sauropoda
Moshi-ryu, fam. gen. et sp. indet., (Bones)
Reptiles
order Plesiosauria
Mosasaurus sp. ()
order Crocodilia
order Testudines, Turtle
Sharks (Teeth)
Ammonoids
Anapachydiscus sp. cf. A. sutneri => Menuites sp. cf. M. sutneri
Cheloniceras? sp.
Hypacanthoplites sp. aff. H. spathi
Nautiloids
Cymatoceras sp. cf. C. pseudoneokomiense
Crustaceans
Linuparus sp.
Insects (Wings, Eggs)
Echinuses
Heteraster hiranamensis
Bivalvia
Amphidonte subhariotoidea
Anthonya subcantiana
Atrina sp.
Cercomya gurgitis
Cucullaea acuticarinata
Eriphyla miyakoensis
Goniomya subarchiaci
Inoceramus japonicus
Neithea nipponica
Nipponitrigonia kikuchiana
Pholadomya (Bucardiomya) brevitesta => Pholadomya brevitesta
Pterotrigonia hokkaidoana
Spondylus decoratus
Gastropoda
Ataphrus yokoyamai
Nerinea rigida
Neritopsis sp.
Nododelphinula elegans
Otostoma japonicum
Pseudomelania elegantula
Trajanella japonica
Tylostoma miyakoense
Ferns (Trunks)
Cladophlebis sp.
Tempskya sp.
Corals
Eugyra cf. cotteaui
Crinoids
Crinoids
Isocrinus sp.
Foraminifera
Orbitolina sp. cf. lenticularis
Sponges
Calcareous algae
Oligocene (39.0-23.03 Ma)
Mammals
aff. order Mysticeti
Crustaceans
Cancer minutoserratus
Bivalvia
Clinocardium fastosum
Crassostrea gigas => Magallana gigas
Cycads
Dioon sp.
Miocene (23.03-5.33 Ma)
Mammals
Desmostylus japonicus, (Molars)
Ontocetus oxymycterus => Albicetus oxymycterus
Reptiles
Geoclemys yudaensis
Fishes
Lampadena nanae
Sharks
Carcharodon megalodon => Carcharocles megalodon, (Teeth)
Crustaceans
Carcinoplax antiqua
Scylla ozawai
Insects
Hodotermopsis iwatensis
family Tenebrionidae, Darkling beetle
Bivalvia
Anadara cf. ogawai
Clinocardium andoi?
Crassostrea gravitesta => Magallana gigas, Pacific oyster
Kotorapecten kagamianus => Patinopecten kagamianus
Masudapecten kintaichiensis => Patinopecten kintaichiensis
Panomya simotomensis
Solemya tokunagai => Acharax johnsoni
Gastropoda
Neverita coticazae => Neverita didyma coticazae
Flowering plants
Acer subpictum
Conifers
Taxodioxylon sequoianum
Foraminifera
Globorotalia rikuchuensis
Diatoms
Actinocyclus ingens
Pleistocene (2.58- 0.01Ma)
Mammals
Leptobison hanaizumiensis => Bison hanaizummiensis
Sinomegaceros kinryuensis => Sinomegaceros yabei, (Horn)
Flowering plants
Alnus sp., (Cones)
Alnus hirsuta, (Cones)
Corylus sp., (Cones)
Corylus sieboldiana, Asian beaked hazel, (Cones)
Juglans mandshurica var. sachalinensis, Japanese walnut, (Cones)
Quercus sp., Oak, (Cupule)
Salix sp., Willow, (Branches)
Conifers
Larix gmeliniii subsp. japonica, (Cones)
Picea sp., Spruce, (Cones)
Picea alcokiana, (Cones)
Picea glehnii, Sakhalin spruce, (Cones)
Pinus koraiensis, Korean pine, (Cones)
Investigation in progress
Flowering plants
Juglans megacinerea => Juglans cinerea var. megacinerea, (Nuts)